#pragma once

#include<iostream>
#include<assert.h>
using namespace std;

namespace bit
{
	class string
	{
	public:

		typedef char* iterator;
		typedef const char* const_iterator;

		iterator begin();
		iterator end();

		const_iterator begin() const;
		const_iterator end() const;


		string(const char* str="");
		~string();
		const char* c_str() const;

		size_t size() const;
		char& operator[](size_t pos);
		const char& operator[](size_t pos) const;

		void reserve(size_t n);

		void push_back(char ch);
		void append(const char* str);

		string& operator+= (char ch);
		string& operator+= (const char* str);

		void insert(size_t pos, char ch);
		void insert(size_t pos, const char* str);
		void erase(size_t pos = 0, size_t len = npos);

		size_t find(char ch, size_t pos = 0);
		size_t find(const char* str, size_t pos = 0);

		void swap(string& s);
		string substr(size_t pos = 0, size_t len = npos);

		bool operator<(const string& s) const;
		bool operator>(const string& s) const;
		bool operator<=(const string& s) const;
		bool operator>=(const string& s) const;
		bool operator==(const string& s) const;
		bool operator!=(const string& s) const;

	private:
		char* _str;
		size_t _size;
		size_t _capacity;

		const static size_t npos;
	};
}



